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Role of Medication in Making Urine Less Acidic as Part of Kidney Stone Prevention

NCT06819111 · Status: NOT_YET_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2026-02-05

No results posted yet for this study

Summary

Diet and medications are the cornerstones of kidney stone prevention. Potassium citrate is a commonly prescribed medication to help prevent kidney stones by making urine less acidic. There are different forms of potassium citrate such as over-the-counter tablet or powder, and slow-release tablets that require a prescription. However, it is unknown if one form is better than the others. Therefore, we want to compare different forms of potassium citrate and find out how well they work and whether patients prefer one form over the others.

The study period will last approximately 6 weeks for each participant. Patients will be instructed to take one form of potassium citrate for one week at a time followed by a washout period for one week. This process will be completed a total of three times as we seek to study the effects of three forms of potassium citrate.

At the end of each trial week patients will be asked to provide urine samples and complete two surveys. Urine will need to be collected for 24 hours, which will then be examined to determine the effects that each form of potassium citrate has on urine. In addition, completed surveys will give us information on how well the medication was tolerated and their satisfaction with the treatment. There is a possibility that patients like one form better than others, and it is also possible that they do not see a difference at all.

Throughout the duration of the study patients will be asked to be a directed diet. This will be based on general recommendations by the National Kidney Foundation for the prevention of kidney stones.

Conditions

  • Kidney Calculi

Interventions

DRUG

Potassium Citrate Extended Release Oral Tablet

In this crossover study, patients will serve as their own controls. Patients will receive slow-release potassium citrate (UroCit-K), potassium magnesium citrate (powder), or potassium magnesium citrate (tablets). The study period will last approximately 6 weeks for each participant. Patients will be instructed to take one form of potassium citrate for one week at a time followed by a washout period for one week. This process will be completed a total of three times as we seek to study the effects of three forms of potassium citrate.

Sponsors & Collaborators

  • University of Texas Southwestern Medical Center

    lead OTHER

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2027-07-31
Completion
2027-10-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06819111 on ClinicalTrials.gov